Logic Score scrolling as you play

Hi, I've discovered what I think is a novel way to show people your music. Maybe it's been done before, but what I've done is used an application called iShowU to record Logic's Score while playing back a track. I then post the video it records to YouTube (http://youtube.com/user/alistairjohnston) or to my own Web site (http://alistairjohnston.com).

yay - alastair! I like what you're doing too... I must have a go myself.

It's uncanny, but listening to JC and watching the sore unfold tweaks my brain in a unique way - I suppose its a form of synesthesia, but I often 'see' what I play and wham! there it is on my monitor. Especially tickled when JC holds a note and the score stops for what seems like ages - then off we go again at a madcap pace

Have you or Alistair tried ScreenFlow for video capture?
My 14-yr-old son seems to be ahead of me in this domain
Also I think that Snow Leopard will include a new version of Quicktime which will do screen capture. Heard anything about this?